CN103250686A - High-aspect-ratio double-arc surface-middle layer trawl board - Google Patents
High-aspect-ratio double-arc surface-middle layer trawl board Download PDFInfo
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- CN103250686A CN103250686A CN2013102320673A CN201310232067A CN103250686A CN 103250686 A CN103250686 A CN 103250686A CN 2013102320673 A CN2013102320673 A CN 2013102320673A CN 201310232067 A CN201310232067 A CN 201310232067A CN 103250686 A CN103250686 A CN 103250686A
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Abstract
The invention relates to a high-aspect-ratio double-arc surface-middle layer trawl board which comprises a main panel, wherein the main panel is in a vertical double-arc structure; a cross section is double-arc internal hollow; an upper top board is mounted at the top of the main panel; a lower top board is mounted at the bottom of the main panel; a middle reinforcing board is mounted in the middle of the main panel; reinforcing rib boards are mounted between the upper top board and the middle reinforcing board, and between the middle reinforcing board and the lower top board respectively; the upper top board, the middle reinforcing board, the lower top board and the reinforcing rib boards divide an inner space of the main panel into four watertight spaces; a guide board is mounted on the front side of the main panel; a tow rope connecting frame is mounted at one end, close to the front side, of the middle reinforcing board; a cross rope connecting frame is mounted on the main panel close to the top of the rear side of the upper top board at the top, and close to the top of the main panel; and cross rope connecting frames are mounted at the rear end, close to the upper top board and the lower top board, of the main panel. The high-aspect-ratio double-arc surface-middle layer trawl board is located on a target water layer, has a greater expansionary force and smaller water resistance, and is applicable to surface-middle layer trawling.
Description
Technical field
The invention belongs to sea fishery and fish for technical field of tools, particularly relate to the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio.
Background technology
Trawl board is the main accessory of realizing the netting gear expansion in fishing boat trawlnet fishing operation.Should be according to the sea area characteristics in the production, the power of fishing boat, fish for object, operation fishing ground, fish for water layer, facility condition etc., select suitable web plate type.Web plate type commonly used has ellipse, rectangle, " V " font, vertical type curved face type, split, multiple aerofoil profile web plate etc. in the trawl-net fishing at present.Wherein the advantage of high aspect ratio vertical type curved face web plate is that lift coefficient is big, and resistance coefficient is little, and board efficiency is higher, is mainly used in pelagic trawling.These web plates also can be applicable to the bottom trawling after improving through suitable, dragging the iron counter weight device as increase.But when carrying out top layer and pelagic trawling, be subjected to the restriction of this body structure of web plate and weight, still can't satisfy under certain towing tension and towing speed condition, make web plate be positioned at the target water layer.
Summary of the invention
Technical problem to be solved by this invention provides the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio, makes web plate be positioned at the target water layer, and has bigger expansionary force and less water resistance, is applicable to table, pelagic trawling.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of high aspect ratio two cambered surface table middle layer trawl web plates, comprise main panel, described main panel is vertical pair of globoidal structure, cross section is the Gothic inner hollow, top board is installed at described main panel top, lower roof plate is installed in the bottom, the middle middle part stiffener of installing, between described upper plate and the middle part stiffener, be separately installed with deep floor between middle part stiffener and the lower roof plate, described upper plate, the middle part stiffener, lower roof plate and deep floor are separated into four watertight spaces with the main panel inner space, described main panel installed in front has deflector, one end of the close front side of described middle part stiffener is equipped with and drags the guiding principle link, the position that described main panel is installed the close top of top board rear side near the top is equipped with fork guiding principle link, and described main panel rear end is equipped with fork guiding principle link near the position of upper plate and lower roof plate.
Described main panel inner arc radius of curvature is greater than the outer arc radius of curvature.
Described main panel edges at two ends is fillet.
Connect by connecting plate between described main panel and the deflector.
Described top is installed on the outside one side of top board hook is housed.
Described upper plate, middle part stiffener, lower roof plate and deep floor are separated into four watertight spaces with the main panel inner space.
The angular edge of described upper plate, middle part stiffener, lower roof plate, deep floor, deflector all becomes fillet.
Ratio to the distance of rear side is 2.5:1 to the distance of bottom and front side at described main panel top.
Beneficial effect
The invention has the advantages that, make web plate be positioned at the target water layer, and have bigger expansionary force and less water resistance, be applicable to table, pelagic trawling.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the embodiment of the invention;
Fig. 2 is the front view of the embodiment of the invention;
Fig. 3 is that the A-A of Fig. 2 is to cutaway view;
Fig. 4 is that the B-B of Fig. 2 is to cutaway view;
Fig. 5 is the right view of the embodiment of the invention.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Shown in Fig. 1 to 5, the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio, comprise main panel 2, described main panel 2 is vertical pair of globoidal structure, cross section is the Gothic inner hollow, top board 1 is installed at described main panel 2 tops, lower roof plate 6 is installed in the bottom, the middle middle part stiffener 8 of installing, between described upper plate 1 and the middle part stiffener 8, be separately installed with deep floor 7 between middle part stiffener 8 and the lower roof plate 6, described upper plate 1, middle part stiffener 8, lower roof plate 6 and deep floor 7 are separated into four watertight spaces with main panel 2 inner spaces, described main panel 2 installed in front have deflector 3, one end of described middle part stiffener 8 close front sides is equipped with and drags guiding principle link 5, the position that described main panel 2 is installed the close top of top board 1 rear side near the top is equipped with fork guiding principle link 9, and described main panel 2 rear ends are equipped with fork guiding principle link near the position of upper plate 1 and lower roof plate 6.
Described main panel 2 inner arc radius of curvature are greater than the outer arc radius of curvature.
Described main panel 2 edges at two ends are fillet.
Connect by connecting plate 4 between described main panel 2 and the deflector 3.
Described top is installed on the outside one side of top board 1 hook 10 is housed.
(repeat?) angular edge of described upper plate 1, middle part stiffener 8, lower roof plate 6, deep floor 7, deflector 3 all becomes fillet.
Ratio to the distance of rear side is 2.5:1 to the distance of bottom and front side at described main panel 2 tops.
Main panel is vertical rectangle curved-surface structure, inner hollow, and cross section is Gothic, the inner arc radius of curvature is greater than the outer arc radius of curvature.Upper plate, middle part stiffener, lower roof plate and deep floor are separated into four watertight spaces with the main panel inner space, under the constant situation of web plate self structure weight, have increased the displacement of volume of web plate, make web plate itself have certain buoyancy.
Further, deflector is positioned at the main panel front end, links to each other with main panel by connecting plate.
Further, drag the guiding principle link and be installed on the stiffener of middle part, fork guiding principle link is fixed on main panel outer ledge position.
Further, the upper plate top is equipped with hook, makes things convenient for the lifting of web plate.
The two cambered surface table middle layer trawl web plates of a kind of high aspect ratio that utilizes invention to provide need not improve towing speed and can adapt to top layer and pelagic trawling, and have good hydrodynamic performance.
Claims (7)
1. two cambered surface table middle layer trawl web plates of a high aspect ratio, comprise main panel (2), it is characterized in that, described main panel (2) is vertical pair of globoidal structure, cross section is the Gothic inner hollow, top board (1) is installed at described main panel (2) top, lower roof plate (6) is installed in the bottom, the middle middle part stiffener (8) of installing, between described upper plate (1) and the middle part stiffener (8), be separately installed with deep floor (7) between middle part stiffener (8) and the lower roof plate (6), described upper plate (1), middle part stiffener (8), lower roof plate (6) and deep floor (7) are separated into four watertight spaces with main panel (2) inner space, described main panel (2) installed in front has deflector (3), one end of the close front side of described middle part stiffener (8) is equipped with and drags guiding principle link (5), and described main panel (2) rear end is equipped with fork guiding principle link (9) near the position of upper plate (1) and lower roof plate (6).
2. the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio according to claim 1 is characterized in that described main panel (2) inner arc radius of curvature is greater than the outer arc radius of curvature.
3. the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio according to claim 1 is characterized in that described main panel (2) edges at two ends is fillet.
4. the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio according to claim 1 is characterized in that, connect by connecting plate (4) between described main panel (2) and the deflector (3).
5. the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio according to claim 1 is characterized in that described top is installed on the outside one side of top board (1) hook (10) is housed.
6. the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio according to claim 1 is characterized in that the angular edge of described upper plate (1), middle part stiffener (8), lower roof plate (6), deep floor (7), deflector (3) all becomes fillet.
7. the two cambered surface table middle layer trawl web plates of a kind of high aspect ratio according to claim 1 is characterized in that, the ratio to the distance of rear side is 2.5:1 to the distance of bottom and front side at described main panel (2) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102320673A CN103250686A (en) | 2013-06-13 | 2013-06-13 | High-aspect-ratio double-arc surface-middle layer trawl board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102320673A CN103250686A (en) | 2013-06-13 | 2013-06-13 | High-aspect-ratio double-arc surface-middle layer trawl board |
Publications (1)
| Publication Number | Publication Date |
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| CN103250686A true CN103250686A (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102320673A Pending CN103250686A (en) | 2013-06-13 | 2013-06-13 | High-aspect-ratio double-arc surface-middle layer trawl board |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104839104A (en) * | 2015-05-21 | 2015-08-19 | 山东大学（威海） | Upright hook-surface grid-type screen |
| CN104839103A (en) * | 2015-05-21 | 2015-08-19 | 山东大学（威海） | Vertical V-surface grid plate |
| CN104855345A (en) * | 2015-05-21 | 2015-08-26 | 山东大学（威海） | Vertical V-shaped grid screen plate |
| CN105594670A (en) * | 2016-03-09 | 2016-05-25 | 中国水产科学研究院东海水产研究所 | Horizontal expansion device for Euphausia superba trawl net |
| CN105875534A (en) * | 2016-05-24 | 2016-08-24 | 中国水产科学研究院东海水产研究所 | Frame plate-embedded type assembly mesh plate |
| EP3349575B1 (en) | 2015-09-14 | 2021-05-26 | NY Toghlerahonnun Ehf. | Airfoil shaped trawl door |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216894A (en) * | 1996-04-30 | 1999-05-19 | 赫尔基·拉森 | Otter board |
| CN2817425Y (en) * | 2005-07-19 | 2006-09-20 | 中国水产科学研究院东海水产研究所 | Rectangular curved netting plate |
| CN202890253U (en) * | 2012-10-11 | 2013-04-24 | 宁波捷胜海洋开发有限公司 | Vertical single-seam net board of middle-layer trawl |
| CN202890252U (en) * | 2012-10-11 | 2013-04-24 | 宁波捷胜海洋开发有限公司 | Vertical curved net board of middle-layer trawl |
-
2013
- 2013-06-13 CN CN2013102320673A patent/CN103250686A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216894A (en) * | 1996-04-30 | 1999-05-19 | 赫尔基·拉森 | Otter board |
| CN2817425Y (en) * | 2005-07-19 | 2006-09-20 | 中国水产科学研究院东海水产研究所 | Rectangular curved netting plate |
| CN202890253U (en) * | 2012-10-11 | 2013-04-24 | 宁波捷胜海洋开发有限公司 | Vertical single-seam net board of middle-layer trawl |
| CN202890252U (en) * | 2012-10-11 | 2013-04-24 | 宁波捷胜海洋开发有限公司 | Vertical curved net board of middle-layer trawl |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104839104A (en) * | 2015-05-21 | 2015-08-19 | 山东大学（威海） | Upright hook-surface grid-type screen |
| CN104839103A (en) * | 2015-05-21 | 2015-08-19 | 山东大学（威海） | Vertical V-surface grid plate |
| CN104855345A (en) * | 2015-05-21 | 2015-08-26 | 山东大学（威海） | Vertical V-shaped grid screen plate |
| CN104839104B (en) * | 2015-05-21 | 2019-04-12 | 山东大学（威海） | A kind of upright curved surface grid type web plate |
| EP3349575B1 (en) | 2015-09-14 | 2021-05-26 | NY Toghlerahonnun Ehf. | Airfoil shaped trawl door |
| CN105594670A (en) * | 2016-03-09 | 2016-05-25 | 中国水产科学研究院东海水产研究所 | Horizontal expansion device for Euphausia superba trawl net |
| CN105594670B (en) * | 2016-03-09 | 2018-12-18 | 中国水产科学研究院东海水产研究所 | A kind of krill trawlnet horizontal expansion device |
| CN105875534A (en) * | 2016-05-24 | 2016-08-24 | 中国水产科学研究院东海水产研究所 | Frame plate-embedded type assembly mesh plate |
| CN105875534B (en) * | 2016-05-24 | 2019-05-31 | 中国水产科学研究院东海水产研究所 | A kind of frame panel formula assembly reticular lamina |
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Application publication date: 20130821 |